Windows 7 - ralink rt61 turbo problem

Recently my network has been worse than ever, usually my router just misses up and i unplug and plug it back in and it fixes it.
But recently my Ralink RT61 Turbo wireless lan card has been just getting horrible signal from the router.
I know for a fact it is not the router since my other computer has perfect connection, they are in the same room.

It has been like this for a long time but i cant stand it anymore.

Why does it do this? how can i fix it?

I took it out and cleaned the motherboard and everything (for some reason i thought that would help LOL)

what can i do?


One minute it will be 100% connection the next a 57% the next a 76%, i dont understand it

I have updated the router and wireless cards firmware.

this is the card
http://www.newegg.com/Product/Produc...-021-_-Product

when i reflect on it, it maybe my WRTG5 v8 router, it always messed up before and i am sure it does now, but sometimes when i disconnect it and reconnect it, it wont solve the problem like it did usually

WOOHHHOOO troubleshooting got me a problem, now please help me treat it!

her is what i got:
Your computer appears to be correctly configured, but the device or resources (DNS server) is not responding


help!